[openib-general] [PATCH] 2/2 : ip over ib tx/rx split

[Roland Dreier]

    Roland> The only difference is that we unlock the receive CQ and
    Roland> lock the send CQ in the middle.

    Michael> Are you sure?  I *do* have msi-x on these machines.

Of course I'm not sure, but as far as I know, with the current drivers
even with MSI-X there's still only one completion interrupt handler,
which can only run on one CPU at a time.

Of course allowing different CQs to be bound to different interrupt
handlers by creating multiple completion EQs is an good extension that
I plan on implementing, but it's not written yet.  Even when it's done
I'm not sure that having IPoIB run multiple interrupt handlers at once
is worth it.  It's fun to get huge numbers out of IPoIB but presumably
people want some CPU left over to do real work.

 - R.